Subversion-Projekte lars-tiefland.laravel_shop

<?php

/*

 * This file is part of Psy Shell.

 *

 * (c) 2012-2023 Justin Hileman

 *

 * For the full copyright and license information, please view the LICENSE

 * file that was distributed with this source code.

 */

namespace Psy\CodeCleaner;

use PhpParser\Node;

use PhpParser\Node\Stmt\Class_;

use Psy\Exception\FatalErrorException;

/**

 * The final class pass handles final classes.

 */

class FinalClassPass extends CodeCleanerPass

{

    private $finalClasses;

    /**

     * @param array $nodes

     *

     * @return Node[]|null Array of nodes

     */

    public function beforeTraverse(array $nodes)

    {

        $this->finalClasses = [];

    }

    /**

     * @throws FatalErrorException if the node is a class that extends a final class

     *

     * @param Node $node

     *

     * @return int|Node|null Replacement node (or special return value)

     */

    public function enterNode(Node $node)

    {

        if ($node instanceof Class_) {

            if ($node->extends) {

                $extends = (string) $node->extends;

                if ($this->isFinalClass($extends)) {

                    $msg = \sprintf('Class %s may not inherit from final class (%s)', $node->name, $extends);

                    throw new FatalErrorException($msg, 0, \E_ERROR, null, $node->getLine());

                }

            }

            if ($node->isFinal()) {

                $this->finalClasses[\strtolower($node->name)] = true;

            }

        }

    }

    /**

     * @param string $name Class name

     */

    private function isFinalClass(string $name): bool

    {

        if (!\class_exists($name)) {

            return isset($this->finalClasses[\strtolower($name)]);

        }

        $refl = new \ReflectionClass($name);

        return $refl->isFinal();

    }

}